Which of the following will not have the same number of valence electrons?

carbon

silicon

lead

bismuth

Why atoms become more stable when they form bonds?

When 0.654 grams of a polymer were dissolved in 40.9 mL of benzene at 21.9 degrees C, the osmotic pressure was found to be 0.048 atm. Calculate the molar mass of the polymer.

The form of energy that can move from place to place across the universe is (answer) On Earth, the main source of this energy is (2nd answer) First blank;

What is not represented by a balanced chemical equation? 1) The same number of atoms is on each side of the equation. 2) The formulas for all substances are correct. 3) The same mass is represented on each side of the equation.

Why are fingerprints individual evidence?

What volume of 0.480 m koh is needed to react completely with 15.8 ml of 0.150 m h2so4? assume the reaction goes to completion?

Which sample of water contains particles having the highest average kinetic energy?

Use the terms magnetic field and magnetic pole in a sentence

Which of the following statements about chemical formulas is FALSE? A) The subscripts represent the relative number each type of atom in the compound. B) The subscripts represent the relative mass of each type of atom in the compound.

The lowest possible concentration of free hydrogen ions is represented by a ph value of